Scott Minerd, the chief investment officer of Guggenheim Partners, sees a 10% drop in the stock market, followed by a 10-to-15-year period of U.S. prosperity.

The stock market sold off last week, and gold took a big hit, its price falling nearly 10% on Monday, April 15. Meanwhile, the 10-year Treasury bond continues to have a paltry yield, most recently about 1.7%. For some perspective on all this, Barron's turned to Scott Minerd, the chief investment officer of Guggenheim Partners. Overseeing about $170 billion for its clients, Guggenheim has raised its profile recently as a deal maker. It was the main player in the purchase of the Los Angeles Dodgers last year for $2.15 billion, a...